from random import *
from tkinter import *
size = 900
visota = 1700
shirina = 900
root = Tk()
canvas = Canvas(root, width=shirina, height=visota)
canvas.pack()
diapason = 0
while True:
colors = choicecolors = choice(['aqua', 'blue', 'tomato','fuchsia', 'green', 'maroon', 'orange',
'pink', 'purple', 'red','yellow', 'violet', 'indigo', 'chartreuse', 'lime','#f55c4b'])
x0 = randint(0, size)
x0 = randint(0, size)
y0 = randint(0, visota)
d = randint(0, size/5)
canvas.create_oval(x0, y0, x0+d, y0+d, fill=colors )
root.update()